Ethernet Cable goes kaput...

I realize that there have probably been many threads like this, but I couldn't find any with a sufficient reply.
My new Macbook has been completely normal internet-wise for two months until today, when it suddenly and inexplicably (in the middle of a standard internet procedure) cut out, and has since failed to recognize my ethernet cable.
I tried other peoples' ethernet cables with my Mac and my own cable still works just fine with my PC, so it must be a problem with my Mac.
All of the other topics I've found about this for the most part have ended with people getting new logic boards or computers. I figured I'd give it a shot, see if it's fixable before I fly off the handle.
Heeeelp?

For anyone who has the same problem...
I called Apple (1-800-MY-APPLE) and they referred me to a local Apple-certified repair place.
Turns out I needed a new logic board. YAY. Thankfully since my Macbook is a whopping TWO MONTHS OLD, it's still under warantee. Quality stuff.

Similar Messages

Question re. Ethernet cable going from HH3 to Mode...

Guys,
Do any of you know whether you can use any Cat5e ethernet cable from the Red Infinity socket on the HH3 to the LAN1 port on the Openreach modem as opposed to the one with the red terminals provided by BT? I only ask as like most of you I'm sure, my HH3 and modem are no more than about 20cm apart so I'd prefer to use a much shorter cable than the one supplied.
And does that also apply to the RJ11 going from the Master Socket to the DSL port on the modem (i.e. will any RJ11 do)?
Cheers in advance.
You won't get to ride the racehorse...until you've ridden the mule.... - RogerB 13/04/2010

from the homehub to modem, any decent cat5/cat5a/cat6 cable will do. as for the rj11 cable to phone socket, if you know a good i.t. guru, he could knock you up a cat5 cable with rj11 connectors at each end to your specific length, or, if you don't know an i.t. guru, you could scout the net for the cable. I use such a cable and it is far superior to the one supplied by bt.
Also, if you feel competent & have the tools,you could do it yourself. i posted howto do this previously, so a quick search with my moniker should find it
free your computer, use opensource
i'm a linux user & very happy about it

Sharing one ethernet cable with two macs using a USB Ethernet Adaptor

I have two computers running Mac OS 10.6 but only one ethernet cable in my office. One ethernet cable goes from the wall to Mac #1. I have a cisco USB Ethernet Adaptor USB300M that I like to use as OUTGOING ethernet cable from Mac #1 to plug into Mac #2. Does anybody know how this works? Simply plugging it in does not work. Thanks for any suggestions!

If either of these computers is a Mac Pro (65 lb.) tower, all of which have two Ethernet jacks, Internet sharing is crisply supported with any additional Hardware. Cable the wall jack Ethernet to the first Ethernet port, then cable the second Ethernet port to the second Mac. Configuration is described in this article:
Mac OS X 10.6 Help: Sharing your Internet connection

Ethernet cable~ Cross over or Wire to wire?

Do I use a Cross over Ethernet cable or a wire to wire Ethernet Cable going from ATV to desk top?
Thank you
Message was edited by: Terry Blakeslee

Just for confirmation
http://support.apple.com/kb/HT2274

Using an ethernet cable to connect Time Cap to iMac?

Hello,
This is a pretty basic question, but I'm not really sure what the correct answer is.
I use a Time Capsule as my WiFi unit in my house (I have a cable internet connection---cable comes out of the wall and goes into a cable modem, and then from there, an ethernet cable goes from the cable modem into my Time Capsule).
I was told by an Apple expert that I can probably get a faster internet connection if I use an ethernet cable to connect my iMac to my Time Capsule (as opposed to using it via WiFi, as I am currently doing). I have two questions regarding this:
1) Is it true that my speed will increase?
2) How do I connect the two together? Do I just use a spare ethernet cable and plug that into the rear of my Time Capsule, and then the other end into my iMac?
I want to keep the WiFi part working, because I have other Apple devices that use WiFi (iPhone, iPad, AppleTV).
Thank you for any information and/or suggestions.

I was told by an Apple expert that I can probably get a faster internet connection if I use an ethernet cable to connect my iMac to my Time Capsule (as opposed to using it via WiFi, as I am currently doing). I have two questions regarding this:
1) Is it true that my speed will increase?
The expert is only providing half of the story. He forgot to tell you that your Internet connection speed is determined by the plan that you have with your Internet Service Provider (ISP).
This is the bottleneck on your (and my) network since your wireless connection speed capability is already much higher than your ISP can ever hope to deliver.
For example, let's say that your plan with your provider supplies 20 Mbps. Your wireless network will typically handle much higher speeds...anywhere from 100-250+ Mbps.
Yes, an Ethernet connection has yet higher speed potential than a wireless connection, but if your wireless connection speed potential is already much faster than your Internet connection can deliver, having even higher speed potential with an Ethernet connection will do nothing for your performance.
In other words, your Time Capsule (or any other router) cannot take the signal that your Internet Provider supplies and make it go faster, whether it is using wireless or Ethernet connections.
Your Internet connection speed will only be as fast as your plan allows. If you need a faster Internet connection, you will need to speak to your ISP about a faster plan.
2) How do I connect the two together? Do I just use a spare ethernet cable and plug that into the rear of my Time Capsule, and then the other end into my iMac?
Yes, that is correct. Be sure to turn off the wireless on your iMac as well since you no longer need that connection.

Setting up xbox live through a Macbook via ethernet cable

Hi there,
as i said in the title im trying to connect to xbox live with an ethernet cable going to my macbook (an aluminum one if that makes any difference) who's connection is wireless. The reason i want to do this is because my router is way too far away from my xbox to connect. Anybody know how to do this?
thanks!

System Preferences --> Sharing --> Internet Sharing.

Time Machine Issue when going from WiFi Network to Ethernet cable

I have my WD network drive attached to my router so I can do Time Machine backups wirelessly. I updated my ancient Mac to Snow Leopard the other day for software reasons, and when I went to backup via Time Machine it said I had 4.6GB to backup. Ok. Don't understand why, but assume it has to do with the OS update. I thought it would quicker to do it through the Ethernet cable, but when I unplugged it from the router and into the Mac Time Machine said it couldn't locate it. that seemed very, very odd. I put it back into the router, and it re-appeared. The bummer is, after two days it's less than half way through the backup. I'm just going to keep it going and hope for the best, but if anybody has any thoughts on this Im all ears.

I decided to change the external drive setup to be a wireless drive over our home network, plugged into my Airport Extreme
Unfortunately, Apple does not support Time Machine backups to a drive attached to the USB port on the AirPort Extreme.
Some users seem to be able to make this work anyway, some have some success and some have no success. At best, it is not a reliable method to protect your data.
Time Machine stores backups differently depending on whether the drive is attached directly to your Mac compared to a drive that works over a network.
That's why Time Machine will make a complete new backup of your Mac when the drive is located at the AirPort Extreme. It may well be that there is not enough space on the drive to allow this.
Options...
1) keep the drive attached to your Mac. This is supported and works well.
2) Erase the drive or add a new drive and start over with a new complete backup on the drive at the AirPort Extreme
If you go for #2, I would suggest that you also develop a secondary backup plan in case things do not work out.
I've experimented 3-4 times with Time Machine backups at the AirPort Extreme and in each case.....they work fine for a few weeks or so. Then I get messages that the backups have become corrupted and I have to "repair disk". This works a few times until I cannot repair the disk and must erase the drive and start over again.
Your resullts, may of course be different.

I have just got an Airport time Capsule for back up how do I do it? Do I put the ethernet cable into the back of my sky hub because when I do that the amber light on my Time Capsule flashes amber. Please talk in simple terms as I am a

I have just got an Apple Airport time capsule to back up my one year old iMac......how do I do it? I have tried putting an ethernet cable into the time capsule and to my sky hub, all I get is a flashing amber light, can anyone help I am a silver surfer not used to Apple products, but love them, plus I don't understand half of the jargon....HELP please

Apple's Setup Guide for the Time Capsule is pretty simple and clear for most users, and you don't indicate at what point or step that you are getting stuck.
So, please go to page 8 in your Setup Guide to review the topic of Plugging In Your AirPort Time Capsule.
The Sky hub will likely have 4 Ethernet <--> ports on the back of the device. Pick any one that you want and connect one end of the Ethernet cable to the port that you choose.
Then, connect the other end of the Ethernet cable to the WAN (circle of dots) port as shown in the Setup Guide.
Continuing with the instructions on page 8 of the Setup Guide, power up the Time Capsule by connecting the power cord from the back of the Time Capsule to a wall AC jack.
Note that the instructions indicate that the indicator light will be solid amber during startup, and it will change to blinking amber during the setup. The light will remain blinking amber until you have configured the Time Capsule at which time the light will turn green.
Next, go to page 12 of the Setup Guide to see the information to Use your Mac or iOS device to set up your AirPort Time Capsule.
You indicated in your tag line that you were using OS X Mountain Lion (10.8.3), and since that will exceed the minimum requirement of a Mac using OS X (10.7.5) as noted in the guide, you can use your Mac to set up the Time Capsule.
Continuing with the instructions on page 12 of the Setup Guide......
1. Open AirPort Utility on your Mac. It is located as follows: Finder (the smiley face on the dock) > Applications > Utilities > AirPort Utility
2. Select your AirPort Time Capsule and click Continue. You won't be able to do this, but read further......If you do not see the AirPort Time Capsule that you want to configure, choose it from the WiFi status menu in the menu bar, at the top of the screen.
So, clicking on the WiFi icon will yield a small window that looks like this:
The example below shows an AirPort Extreme. You will see Time Capsule on your screen. Click on Time Capsule.
When you click on Time Capsule, that will get the setup wizard going. it will take a minute to analyze the network, then display a screen that looks similar to the illustration below, except that you will see a picture of a Time Capsule on your screen
3. Continuing with the Setup Guide.......Follow the onscreen prompts to create a new network
Network Name...........Type in a simple name that you want to call your network. Do not use the suggested name.
Base Station Name....Type in a simple name that you want to call the Time Capsule. Mine is TC, for example.
Password...................Type in a password that will be used for both the network and the Time Capsule. Write that down.
Verify..........................Type in the password again to Verify
Click Next
The setup wizard will configure everything for you. When you see the message of Setup Complete, click Done.
The Time Capsule is now set up and it will display a green light.

Possible to do an Ethernet Cable Split?

Just wondering if there was such a thing as a splitter for Ethernet cables. in other words have 2 different enternet cables connected to modem so i can have 2 different computer connected internet to same modem, without going to WIFI
thanks

It's called a wired/wireless router. If you have a router then perhaps it provides additional Ethernet ports. If it doesn't, the replace it with one that does Surely your cable provider can help you with the exchange.
You do not want to use a switch or hub if the modem does not have an Ethernet port separate from the one that connects to your computer. It would lack the security of a proper gateway/router.
The Apple Airport Extreme Base Station is a router that will work, but it cannot act as the cable modem. Ask your provider for a modem that can work the the AEBS as the network router.

HP Officejet Pro 8600 refuses to be recognized by my Windows 7 via router, USB or Ethernet cable

This is a really strange problem. I owned a computer store for 20 years and I had never encountered a wierd problem such as this. It really has me scratching my head.
I purchased the HP wireless printer 3 days ago, replacing a Kodak all in one wireless printer that I used for 3 months.
I have been trying for the past 3 days, working up to 10 hours per day on it, trying to get my main tower computer with 32 bit Windows 7 to recognize the printer via the wireless router, the USB cable direct and Ethernet cable from the router to the printer with no success.
The tower is hard wired to a TP-Link router.
Strange as it is, my 2 laptops, one with Windows Xp and the other with Windows Vista, had no problem at all connecting, accepting, installing and printing out test sheets for me. Both notebooks installed as they should have. However, my tower with 32 bit Windows 7 absolutely will not connect. There has to be something in the tower that is causing this problem.
I have tried to connect directly to the printer using an USB cable from my tower to the printer, it failed.
I have tried using an Ethernet cable plugged directly from the router to the printer, that failed also.
I have uninstalled the HP software 4 times, cleaned the registry and reinstalled the HP software with no different results.
I have booted up with minimum Microsoft files only, I have booted up in safe mode, I have booted up as Administrator - still the tower will not recognize the printer.
I have downloaded & installed the HP software as well as using the CD, the patch, the firmware upgrade and several other programs that HP offers, none has helped.
I have scanned and scanned the internet for possible solutions now for 3 days, nothing I have tried has worked yet.
I have removed my anti-virus software and shut off the firewall. It made no difference at all.
I manually added the HP printer on my tower via the control panel, it would not connect to the printer that way either.
I have restored my registry numerous times back to before any attempts to add the printer, that didn't help.
However, I can access the printer via my internet browser by typing in the printer's address 192.165.1.106
Believe it or not, I can print a test page from there and I can also scan the test page. I just can't get my tower to recognize this printer.
This is really driving me buggy, any suggestions or help would be greatly appreciated.
I currently have an HP 1300 Laserjet on the network, non-wireless, and it works great with all computers via the router.
I have a 2nd tower currently having a mother board repaired, I would bet that it will work when I get it back.

Thanks for your comments.
I tried a new Ethernet cable hard wired between the printer and the router. Since the computer is wired via an Ethernet cable to the router and the router is wired directly to the printer, one would think the computer would see the printer but it won't.
I also tried a brand new 10 foot USB cable between the computer and the printer, it failed and it wouldn't install the software either.
I am adding a 2nd hard drive next week and going dual boot, that should work on the new drive at least.
An associate, who is the best networking guy in town, just left my house after trying for 2 hours to find a cure or the problem, he finally gave up. Like me, he thinks it may be something in the registry.

Help! pc to new iMac - HDD not 'seen' on pc... ethernet cable issue too!

Hi all
I just got my new iMac a few days ago and I've tried the ethernet cable and my mac can see the folders on the pc but wont open them! (the original item cannot be found)
my ethernet cable isn't linked to the mac now but I can still see my computer in finder... both have the wireless going.. how do I 'choose' the ethernet cable.. maybe that's why it's not working?
I've now got a western digital Studio edition 500mb external harddrive - I've plugged that into the mac and all is well... I was hoping I could then plug it into the pc and drag all the files over (65gigs) and then I can transfer them to the mac.
I've used the usb cable on the pc (doesn't have firewire) and the pc does nothing!
I can't see it and I've tried clicking on the removable disc drives but it says there's nothing connected.
I know that the HDD is formatted for macs but if I format it for pcs then will I have the issue of transferring the files to the mac after?
I'm totally confused and this is driving me nuts!
the only other option I have left is to burn billions of dvds with my images and music. sob I really don't want to do that!
I would like to be able to sync my ipod and iphone to the mac and not qet my music wiped! and to get my old crappy pc off my desk.
someone heeeeeeellllllpppp please... will be very happy to get this sorted! my poor little old brain is fried!

Thank you!
I literally just got the same info from a friend (he was away for most of the weekend) and I'm now in the process of copying the pc stuff onto the hard drive (after formatting)
transferred one pic and tried transferring it the mac and it worked... YAY!
so now back to transferring everything from the pc to the HDD now... gonna take a while but at least now I'm on the way off getting rid of the pc
Thanks for your help and response.
(very relieved!)

Ethernet Cable Not Found

I'm trying to connect my brand new iBook 1.33GHz to the internet via a Motorola Surfboard cable modem using an ethernet connection.
All wires and cables are hooked up as per the directions that came up with the set up kit, and the modem appears to be receiving transmission from the cable line as the proper lights are lit.
When I try installing the software I keep getting an error message that tells me that the computer cannot communicate with the cable modem. I tried going into my Network settings to specifically put in that it is to look for the ethernet connection first, it tells me that there is no ethernet cable connected to the computer even though it is connected.
I had been using AOL for a week or two while waiting for the cable modem to arrive. I uninstalled it before attempting to configure the cable modem, but is it possible that it is causing the problems with the ethernet now?
I'm really at a loss, and the cable start up kit is no help at all. All it keeps telling me it to be sure that I have set up my connections according to their little picture, which they are.
Any help or advice would be greatly appreciated.

It seems to be a problem with the cable modem itself. I worked through the same steps with Apple Support today, with no change in the results. They suggested I take my iBook over to my local CompUSA and have them see if they could get a ethernet connection. Ran it over there, and they had no problems getting a connection via the ethernet port.
My service provider tried a few things on their end. They are able to communicate with the modem, but it still won't communicate with my computer. They are going to swap it out for me,so hopefully that will take care of the problem.

My macbook can't connect wirelessly but connects via ethernet cable

I've been going through the discussions in this forum and other info I could find online but I can't seem to fix it. I've only been using this old macbook provided by my employer for a couple of months and I've been having intermittent wireless connectivity issues.
Things to consider:
My network settings show I'm connected to the web but when I load a webpage it says web page not available.
I can connect fine when I plug it to the router via an ethernet cable.
There are other laptops running Windows which use the same connection and they have no problems connecting at all.
I've used diagnostics and restarted the router but its says it can't fix the problem.
I tried one fix before which worked by performing these steps:went to Open network preferences->selected the network name and clicked advanced. I added the network's IP address under DNS.
Details:
Macbook 2,1 model
Mac OS X version 10.6
using Aztech DSL605EW router
I'm not that well versed with the techinical jargon that usually comes with discussions so please excuse me if I will sound like I don't know what I'm talking about. Please feel free to ask for more details which I may have missed.
Appreciate any help that comes my way.

It's important to remember that even for the same location, the settings for cable and airport are quite separate. This means that the settings that work for cable aren't automatically copied across to the airport settings.
Since it works for cable, I suggest you go to Network Settings, select the ethernet cable connection, then location then Advanced. Now note all the settings for all the tabs. Play particular attention to the Proxies. Now come out of advanced, select the airport, go back into Advanced and copy all the settings across so they match up.
Good luck
Bob

Ethernet cable wont fit into imacs ethernet port.

Hello.
I feel like an idiot.
I have build pc's and have my own network at home.
And for some reason i cant fit my ethernet cable into the imac.
I just bought this imac so its the new g5 w/isight.
The plug only goes half way in and then stops.
I have tried all my cables in the house.
Even the pc and all my networked computers.
Can someone help me.
I love my new imac but i want to hook the new imac to the network.
Thanks
Al

There's always the chance that you could be trying to
plug into the modem port. It's easy to do, as they're
pretty similar in shape. The ethernet port is
typically distinguishable by being a bit larger than
the modem port, though they are rather too similar!
I would have suggested that as well, however this user posted that he has the new iMac with built-in iSight camera. This model does not have a built-in modem.
Additionally, the user claimed that the connector would go in about half-way. If it was a RJ-11 port, an RJ-45 connector would never get that far

My web pages aren't loading when connected to the internet through Ethernet cable?

Yesterday my web pages stopped loading on Safari. I tried loading them on google chrome and had the same problem. I then deleted all saved web site data and reset Safari but this still didn't solve the problem. Finally I restarted with safe mode, where the web pages loaded, but slowly, however when I restarted normally the web pages still weren't loading or partially loading. To test whether this was my computer or the ethernet cable I was connected to, I connected to the wifi at my university, where the web pages loaded perfectly. Plus, when connected to the ethernet cable I could Skype, use Spotify etc., it is just the web pages that are causing a problem. Any suggestions how I can fix this? Thank you!

1. This procedure is a diagnostic test. It changes nothing, for better or worse, and therefore will not, in itself, solve the problem.
2. If you don't already have a current backup, back up all data before doing anything else. The backup is necessary on general principle, not because of anything in the test procedure. There are ways to back up a computer that isn't fully functional. Ask if you need guidance.
3. Below are instructions to run a UNIX shell script, a type of program. All it does is to collect information about the state of the computer. That information goes nowhere unless you choose to share it. However, you should be cautious about running any kind of program (not just a shell script) at the request of a stranger on a public message board. If you have doubts, search this site for other discussions in which this procedure has been followed without any report of ill effects. If you can't satisfy yourself that the instructions are safe, don't follow them. Ask for other options.
Here's a summary of what you need to do, if you choose to proceed: Copy a line of text from this web page into the window of another application. Wait for the script to run. It usually takes a few minutes. Then paste the results, which will have been copied automatically, back into a reply on this page. The sequence is: copy, paste, wait, paste again. Details follow.
4. You may have started the computer in "safe" mode. Preferably, these steps should be taken in “normal” mode. If the system is now in safe mode and works well enough in normal mode to run the test, restart as usual. If you can only test in safe mode, do that.
5. If you have more than one user, and the one affected by the problem is not an administrator, then please run the test twice: once while logged in as the affected user, and once as an administrator. The results may be different. The user that is created automatically on a new computer when you start it for the first time is an administrator. If you can't log in as an administrator, test as the affected user. Most personal Macs have only one user, and in that case this section doesn’t apply. Don't log in as root.
6. The script is a single long line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, though you may not see all of it in the browser window, and you can then copy it. If you try to select the line by dragging across the part you can see, you won't get all of it.
Triple-click anywhere in the line of text below on this page to select it:
PATH=/usr/bin:/bin:/usr/sbin:/sbin; clear; Fb='%s\n\t(%s)\n'; Fm='\n%s\n\n%s\n'; Fr='\nRAM details\n%s\n'; Fs='\n%s: %s\n'; Fu='user %s%%, system %s%%'; AC="com.autodesk.AutoCAD com.google.GoogleDrive"; H='^[[:space:]]*((127\.0\.0\.1|::1|fe80::1%lo0)[[:space:]]+local|(255\.){3}255[[:space:]]*broadcast)host[[:space:]]*$'; NS=networksetup; PB="/usr/libexec/PlistBuddy -c Print"; A () { [[ a -eq 0 ]]; }; M () { find -L "$d" -type f | while read f; do file -b "$f" | egrep -lq XML\|exec && echo $f; done; }; AT () { o=`file -b "$1" | egrep -v '^(A.{16}t$|cann)'`; Ps "${1##*/} format"; }; Pc () { o=`grep -v '^ *#' "$2"`; l=`wc -l <<< "$o"`; [[ l -gt 25 ]] && o=`head -n25 <<< "$o"`$'\n'"[$((l-25)) more line(s)]"; Pm "$1"; AT "$1"; }; Pm () { [[ "$o" ]] && o=`sed -E '/^ *$/d; s/^ */ /; s/[-0-9A-Fa-f]{22,}/UUID/g' <<< "$o"` && printf "$Fm" "$1" "$o"; }; Pp () { o=`$PB "$2" | awk -F'= ' \/$3'/{print $2}'`; Pm "$1"; }; Ps () { o=`echo $o`; [[ ! "$o" =~ ^0?$ ]] && printf "$Fs" "$1" "$o"; }; R () { o=; [[ r -eq 0 ]]; }; SP () { system_profiler SP${1}DataType; }; id -G | grep -qw 80; a=$?; A && sudo true; r=$?; t=`date +%s`; clear; { A || echo $'No admin access\n'; A && ! R && echo $'No root access\n'; SP Software | sed '8!d;s/^ *//'; h=(`SP Hardware | awk '/ Id/{print $3}; /Mem/{print $2}'`); o=$h; Ps "Model"; o=$((h[1]<4?h[1]:0)); Ps "Total RAM (GB)"; o=`SP Memory | sed '1,5d;/[my].*:/d'`; [[ "$o" =~ s:\ [^O]|x([^08]|0[^2]|8[^0]) ]] && printf "$Fr" "$o"; o=`SP Diagnostics | sed '5,6!d'`; [[ "$o" =~ Pass ]] || Pm "POST"; p=`SP Power`; o=`awk '/Cy/{print $NF}' <<< "$p"`; o=$((o>=300?o:0)); Ps "Battery cycles"; o=`sed -n '/Cond.*: [^N]/{s/^.*://p;}' <<< "$p"`; Ps "Battery condition"; for b in Thunderbolt USB; do o=`SP $b | sed -En '1d;/:$/{s/ *:$//;x;s/\n//p;};/^ *V.* [0N].* /{s/ 0x.... //;s/[()]//g;s/(.*: )(.*)/ $\2$/;H;};/Apple|Genesy|Intel|SMSC/{s/.//g;h;}'`; Pm $b; done; o=`pmset -g therm | sed 's/^.*C/C/'`; [[ "$o" =~ No\ th|pms ]] && o=; Pm "Thermal conditions"; o=`pmset -g sysload | grep -v :`; [[ "$o" =~ =\ [^GO] ]] || o=; Pm "System load advisory"; o=`nvram boot-args | awk '{$1=""; print}'`; Ps "boot-args"; a=(/ ""); A=(System User); for i in 0 1; do o=`cd ${a[$i]}L*/Lo*/Diag* || continue; for f in *.{cr,h,pa,s}*; do [[ -f "$f" ]] || continue; d=$(stat -f%Sc -t%F "$f"); [[ "$f" =~ h$ ]] && grep -lq "^Thread c" "$f" && f="$f *"; echo "$d ${f%%_2*} ${f##*.}"; done | sort | tail`; Pm "${A[$i]} diagnostics"; done; grep -lq '*$' <<< "$o" && printf $'\n* Code injection\n'; o=`syslog -F bsd -k Sender kernel -k Message CReq 'caught bu|GPU |hfs: Ru|I/O e|last value [1-9]|n Cause: -|NVDA\(|pagin|proc: t|Roamed|SATA W|ssert|Thrott|timed? ?o' | tail -n25 | awk '/:/{$4=""; $5=""};1'`; Pm "Kernel messages"; o=`df -m / | awk 'NR==2 {print $4}'`; o=$((o<5120?o:0)); Ps "Free space (MiB)"; o=$(($(vm_stat | awk '/eo/{sub("\\.",""); print $2}')/256)); o=$((o>=1024?o:0)); Ps "Pageouts (MiB)"; s=( `sar -u 1 10 | sed '$!d'` ); [[ s[4] -lt 85 ]] && o=`printf "$Fu" ${s[1]} ${s[3]}` || o=; Ps "Total CPU usage" && { s=(`ps acrx -o comm,ruid,%cpu | sed '2!d'`); n=$((${#s[*]}-1)); c="${s[*]}"; o=${s[$n]}%; Ps "CPU usage by process \"${c% ${s[$((n-1))]}*}\" with UID ${s[$((n-1))]}"; }; s=(`top -R -l1 -n1 -o prt -stats command,uid,prt | sed '$!d'`); n=$((${#s[*]}-1)); s[$n]=${s[$n]%[+-]}; c="${s[*]}"; o=$((s[$n]>=25000?s[$n]:0)); Ps "Mach ports used by process \"${c% ${s[$((n-1))]}*}\" with UID ${s[$((n-1))]}"; o=`kextstat -kl | grep -v com\\.apple | cut -c53- | cut -d\< -f1`; Pm "Loaded extrinsic kernel extensions"; R && o=`sudo launchctl list | awk 'NR>1 && !/0x|com\.(apple|openssh|vix\.cron)|org\.(amav|apac|calendarse|cups|dove|isc|ntp|openld|post[fg]|x)/{print $3}'`; Pm "Extrinsic daemons"; o=`launchctl list | awk 'NR>1 && !/0x|com\.apple|org\.(x|openbsd)|\.[0-9]+$/{print $3}'`; Pm "Extrinsic agents"; o=`for d in {/,}L*/Lau*; do M; done | egrep -v 'com\.apple\.(CSConfig|server)' | while read f; do ID=$($PB\ :Label "$f") || ID="No job label"; printf "$Fb" "$f" "$ID"; done`; Pm "launchd items"; o=`for d in /{S*/,}L*/StartupItems; do M; done`; Pm "Startup items"; sys=`pkgutil --regexp --only-files --files com.apple.pkg.* | sort | uniq | sed 's:^:/:'`; b=`sed -E '/^.+Lib.+\/Contents\/Info.plist$/!d;s/\/Info.plist$//;/Contents\/./d' <<< "$sys"`; l=`egrep '^/usr/lib/.+dylib$' <<< "$sys"`; [[ "$b" && "$l" ]] && { o=`find -L /S*/L*/{C*/Sec*A,E}* {/,}L*/{A*d,Compon,Ex,In,iTu,Keyb,Mail/B,P*P,Qu*T,Scripti,Sec,Servi,Spo}* -type d -name Contents -prune | grep -Fv "$b" | while read d; do test -f "$d/Info.plist" || continue; ID=$($PB\ :CFBundleIdentifier "$_") || ID="No bundle ID"; printf "$Fb" "${d%/Contents}" "$ID"; done`; Pm "Extrinsic loadable bundles"; o=`find /usr/lib -type f -name *.dylib | grep -Fv "$l"`; Pm "Extrinsic shared libraries"; :; } || echo $'\nReceipts missing'; o=`for e in INSERT_LIBRARIES LIBRARY_PATH; do launchctl getenv DYLD_$e; done`; Pm "Environment"; o=`find -L {,/u*/lo*}/e*/periodic -type f -mtime -10d`; Pm "Modified periodic scripts"; o=`scutil --proxy | grep Prox`; Pm "Proxies"; o=`scutil --dns | awk '/r\[0\] /{if ($NF !~ /^1(0|72\.(1[6-9]|2[0-9]|3[0-1])|92\.168)\./) print $NF; exit}'`; i=`route -n get default | awk '/e:/{print $2}'`; I=`$NS -listnetworkserviceorder | sed -En '/ '$i'\)$/{x;s/^$.+$ //p;q;};x'`; n=`$NS -getdnsservers "$I" | awk '!/^T/{print "not "}'`; Ps "DNS (${n}from DHCP)"; o=`$NS -getinfo "$I" | awk '/k:/{if ($3 !~ "(255\.){3}0") print $3}'`; Ps "Netmask"; R && o=`sudo profiles -P | grep : | wc -l`; Ps "Profiles"; f=auto_master; [[ `md5 -q /etc/$f` =~ ^b166 ]] || Pc $f /etc/$f; for f in fstab sysctl.conf crontab launchd.conf; do Pc $f /etc/$f; done; f=/etc/hosts; Pc "hosts" <(egrep -v "$H" $f ); AT $f; Pc "User launchd" ~/.launchd*; R && Pc "Root crontab" <(sudo crontab -l); Pc "User crontab" <(crontab -l | sed -E 's:/Users/[^/]+/:/Users/USER/:g'); R && o=`sudo defaults read com.apple.loginwindow LoginHook`; Pm "Login hook"; LD="$(`find /S*/*/F* -type f -name lsregister | head -n1` -dump)"; o=`for ID in $AC; do [[ "$LD" =~ $ID ]] && echo $ID; done`; Pm "Application check"; Pp "Global login items" /L*/P*/loginw* Path; Pp "User login items" L*/P*/*loginit* Name; Pp "Safari extensions" L*/Saf*/*/E*.plist Bundle | sed -E 's/(\..*$|-[1-9])//g'; o=`find ~ $TMPDIR.. $ -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 $ | wc -l`; Ps "Restricted user files"; cd; o=`SP Fonts | egrep 'id: N|te: Y' | wc -l`; Ps "Font problems"; o=`find L*/{Con,Pref}* -type f ! -size 0 -name *.plist | while read f; do plutil -s "$f" >&- || echo $f; done`; Pm "Bad plists"; d=(Desktop L*/Keyc*); n=(20 7); for i in 0 1; do o=`find "${d[$i]}" -type f -maxdepth 1 | wc -l`; o=$((o<=n[$i]?0:o)); Ps "${d[$i]##*/} file count"; done; o=; [[ UID -eq 0 ]] && o=root; Ps "UID"; o=$((`date +%s`-t)); Ps "Elapsed time (s)"; } 2>/dev/null | pbcopy; exit 2>&-
Copy the selected text to the Clipboard by pressing the key combination command-C.
7. Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Click anywhere in the Terminal window and paste (command-V). The text you pasted should vanish immediately. If it doesn't, press the return key.
8. If you see an error message in the Terminal window such as "syntax error," enter
exec bash
and press return. Then paste the script again.
9. If you're logged in as an administrator, you'll be prompted for your login password. Nothing will be displayed when you type it. You will not see the usual dots in place of typed characters. Make sure caps lock is off. Type carefully and then press return. You may get a one-time warning to be careful. If you make three failed attempts to enter the password, the test will run anyway, but it will produce less information. In most cases, the difference is not important. If you don't know the password, or if you prefer not to enter it, press the key combination control-C or just press return three times at the password prompt. Again, the script will still run.
If you're not logged in as an administrator, you won't be prompted for a password. The test will still run. It just won't do anything that requires administrator privileges.
10. The test may take a few minutes to run, depending on how many files you have and the speed of the computer. A computer that's abnormally slow may take longer to run the test. While it's running, there will be nothing in the Terminal window and no indication of progress. Wait for the line
[Process completed]
to appear. If you don't see it within half an hour or so, the test probably won't complete in a reasonable time. In that case, close the Terminal window and report the results. No harm will be done.
11. When the test is complete, quit Terminal. The results will have been copied to the Clipboard automatically. They are not shown in the Terminal window. Please don't copy anything from there. All you have to do is start a reply to this comment and then paste by pressing command-V again.
If any private information, such as your name or email address, appears in the results, anonymize it before posting. Usually that won't be necessary.
12. When you post the results, you might see the message, "You have included content in your post that is not permitted." It means that the forum software has misidentified something in the post as a violation of the rules. If that happens, please post the test results on Pastebin, then post a link here to the page you created.
Note: This is a public forum, and others may give you advice based on the results of the test. They speak only for themselves, and I don't necessarily agree with them.
Copyright © 2014 by Linc Davis. As the sole author of this work, I reserve all rights to it except as provided in the Terms of Use of the Apple Support Communities website ("ASC"). Readers of ASC may copy it for their own personal use. Neither the whole nor any part may be redistributed.

Ethernet Cable goes kaput...

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